外源性甲狀腺素對胎兒酒精效果模型仔鼠生長及神經(jīng)系統(tǒng)發(fā)育的影響
[Abstract]:Objective to investigate the effect of exogenous thyroxine on brain injury in (FAE) model. Methods 18 pregnant SD rats were randomly divided into control group, model group and treatment group. From the 6th day of conception to delivery, the model group and the treatment group received 22% ethanol 20 mL daily, while the control group received the same hot calorie and 8% sugar milk daily as the model group. After delivery, 10 rats in each group were kept and separated from the mother mice, which were nurtured by the surrogate mother. In the control group, rats in the model group were subcutaneously injected with normal saline 2 渭 L / g per day for 10 days, and those in the treatment group were subcutaneously injected with 2.5 渭 g / mL L-L-thyroxine 2 渭 L / g per day. The body mass, plasma thyroxine level, brain-derived neurotrophic factor (BDNF) content and BDNF positive Purkinje cells were observed. Results the body weight, plasma thyroxine level and BDNF content of brain tissue in the treatment group and the control group were significantly higher than those in the model group at each time point (P0.01), but the difference between the treatment group and the control group was 0.05. BDNF positive Purkinje cells were observed in cerebellar cortex of treatment group and control group on the 7th day of birth, and the number and arrangement of BDNF positive Purkinje cells in treatment group were more and more neat than those in control group on the 28th day of birth. The protuberance is longer and some branches are visible. Delayed growth and differentiation of Purkinje cells were observed at all time points in the model group. Conclusion exogenous thyroxine can correct the hypothyroxine state of FAE model rats, inhibit the degeneration of BDNF positive Purkinje cells, and improve the developmental disorder of nervous system induced by FAE.
【作者單位】: 延邊大學附屬醫(yī)院;
【分類號】:R-332;R714.5
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